User manual NETGEAR FSM750S Reference Guide

[. . . ] All rights reserved. Trademarks NETGEAR® is a registered trademark of NETGEAR, Inc. in the United States and other countries. Auto UplinkTM is a trademark of NETGEAR, Inc. All other trademarks and registered trademarks are the property of their respective owners. Statement of Conditions In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves the right to make changes to the products described in this document without notice. [. . . ] o Traffic Prioritization (CoS): Class of Service (CoS), also referred to as Quality of Service (QoS), is a way of managing traffic in a network, by treating different types of traffic with different levels of service priority. Higher priority traffic gets faster treatment during times of switch congestion. o VLANs: A Virtual Local Area Network (VLAN) is a means to electronically separate ports on the same switch from a single broadcast domain into separate broadcast domains. By using VLAN, users can group by logical function instead of physical location. There are 64 VLAN supported on this switch. o Spanning Tree Protocol (STP) ensures that only one path at a time is active between any two network nodes. There are maybe more than two physical path between any two nodes for redundant paths; STP ensures only one physical path is active and the others are blocked. STP will prevent an inadvertent loop in a network, which can disable your network due to a "Broadcast storm", the result of a broadcast message traveling through the loop again and again. o MAC: MAC address table Main Menu> Advanced Menu> Port Mirroring This menu option allows you to enable the Port Mirroring capability (see Figure 6-13). You need to specify both the Source and Monitor port. The Monitor port will show a copy of every packet that arrives and departs at the Source port. Page 47 of 121 Figure 6-13: Port Mirroring Page 48 of 121 Main Menu> Advanced Menu> Port Trunking Port Trunking is a feature that allows multiple links between switches to work as one virtual link or aggregate link. Trunks can be defined for similar port types only. For example, a 10/100 port cannot form a Port Trunk with a gigabit port. For 10/100 ports, trunks can only be formed within the same bank. A bank is ports 1 to 8, ports 9 to 16, ports 17 to 24, or port 25 and port 26 (using an FSM726S as an example), on the same switch unit. Up to four trunks can be enabled at the same time within a stack. To set up a trunk, use the space bar to select the ports that will participate in the trunk. Spanning Tree will treat trunked ports as a single virtual port. Note: you must use straight-though cables for all links in the trunk. Note: you must disable auto-negotiation on the ports in a trunk prior to setting up the trunk. Figure 6-14: Port Trunking Page 49 of 121 Main Menu> Advanced Menu> Traffic Prioritization Port Priority allows the user to specify which ports have greater precedence in situations where traffic may be buffered in the switch due to congestion. The ports with a setting of `high' will transmit their packets before those with a `normal' setting. The settings on this page only affect ingress packets that are not already tagged for priority. [. . . ] This excludes patch and equipment cords. The maximum basic link length is 295 feet (90 m). Return Loss Return loss measures the amount of reflected signal energy resulting from impedance changes in the cabling link. The nature of 1000BASE-T renders this measurement very important; if too much energy is reflected back on to the receiver, the device does not perform optimally. [. . . ]